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A randomized heuristic approach to register allocation

  • C. W. Keßler
  • W. J. Paul
  • T. Rauber
Session: Compiler Construction II
Part of the Lecture Notes in Computer Science book series (LNCS, volume 528)

Abstract

We present a randomized algorithm to generate contiguous evaluations for expression DAGs representing basic blocks of straight line code with nearly minimal register need. This heuristic may be used to reorder the statements in a basic block before applying a global register allocation scheme like Graph Coloring. Experiments have shown that the new heuristic produces results which are about 30% better on the average than without reordering.

Keywords

Directed Acyclic Graph Basic Block Optimal Evaluation Graph Coloring Decision Node 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • C. W. Keßler
    • 1
  • W. J. Paul
    • 1
  • T. Rauber
    • 1
  1. 1.Computer Science DepartmentUniversity SaarbrückenGermany

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